Cleaning and liquid contact with solids – Processes – Work handled in bulk or groups
Patent
1993-06-09
1995-09-26
Dean, Richard O.
Cleaning and liquid contact with solids
Processes
Work handled in bulk or groups
134 10, 134 26, 134 40, 134 42, 208390, 208391, B08B 304, B08B 700
Patent
active
054531330
ABSTRACT:
The invention disclosed relates to a process for removing contaminants, such as hydrocarbons, from soil. The process involves contacting the contaminated soil with a suitable solvent for the contaminant, in the presence of a bridging liquid which is immiscible with the solvent, while agitating. The amount of the bridging liquid and the degree of agitation are balanced to control the particle size of the substantially contaminant- and solvent-free soil agglomerates so formed.
REFERENCES:
patent: 4719008 (1988-01-01), Sparks et al.
Capes C. Edward
McNabb David H.
Meadus F. Weldon
Sparks Bryan D.
Dean Richard O.
El-Arini Zeinab
National Research Council of Canada
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